1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-1.0+ */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Renesas USB driver 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2011 Renesas Solutions Corp. 6*4882a593Smuzhiyun * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun #ifndef RENESAS_USB_FIFO_H 9*4882a593Smuzhiyun #define RENESAS_USB_FIFO_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <linux/interrupt.h> 12*4882a593Smuzhiyun #include <linux/sh_dma.h> 13*4882a593Smuzhiyun #include <linux/workqueue.h> 14*4882a593Smuzhiyun #include <asm/dma.h> 15*4882a593Smuzhiyun #include "pipe.h" 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun struct usbhs_fifo { 18*4882a593Smuzhiyun char *name; 19*4882a593Smuzhiyun u32 port; /* xFIFO */ 20*4882a593Smuzhiyun u32 sel; /* xFIFOSEL */ 21*4882a593Smuzhiyun u32 ctr; /* xFIFOCTR */ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun struct usbhs_pipe *pipe; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun struct dma_chan *tx_chan; 26*4882a593Smuzhiyun struct dma_chan *rx_chan; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun struct sh_dmae_slave tx_slave; 29*4882a593Smuzhiyun struct sh_dmae_slave rx_slave; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #define USBHS_MAX_NUM_DFIFO 4 33*4882a593Smuzhiyun struct usbhs_fifo_info { 34*4882a593Smuzhiyun struct usbhs_fifo cfifo; 35*4882a593Smuzhiyun struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO]; 36*4882a593Smuzhiyun }; 37*4882a593Smuzhiyun #define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n])) 38*4882a593Smuzhiyun #define usbhs_for_each_dfifo(priv, dfifo, i) \ 39*4882a593Smuzhiyun for ((i) = 0; \ 40*4882a593Smuzhiyun ((i) < USBHS_MAX_NUM_DFIFO) && \ 41*4882a593Smuzhiyun ((dfifo) = usbhsf_get_dnfifo(priv, (i))); \ 42*4882a593Smuzhiyun (i)++) 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct usbhs_pkt_handle; 45*4882a593Smuzhiyun struct usbhs_pkt { 46*4882a593Smuzhiyun struct list_head node; 47*4882a593Smuzhiyun struct usbhs_pipe *pipe; 48*4882a593Smuzhiyun const struct usbhs_pkt_handle *handler; 49*4882a593Smuzhiyun void (*done)(struct usbhs_priv *priv, 50*4882a593Smuzhiyun struct usbhs_pkt *pkt); 51*4882a593Smuzhiyun struct work_struct work; 52*4882a593Smuzhiyun dma_addr_t dma; 53*4882a593Smuzhiyun const struct dmaengine_result *dma_result; 54*4882a593Smuzhiyun void *buf; 55*4882a593Smuzhiyun int length; 56*4882a593Smuzhiyun int trans; 57*4882a593Smuzhiyun int actual; 58*4882a593Smuzhiyun int zero; 59*4882a593Smuzhiyun int sequence; 60*4882a593Smuzhiyun }; 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun struct usbhs_pkt_handle { 63*4882a593Smuzhiyun int (*prepare)(struct usbhs_pkt *pkt, int *is_done); 64*4882a593Smuzhiyun int (*try_run)(struct usbhs_pkt *pkt, int *is_done); 65*4882a593Smuzhiyun int (*dma_done)(struct usbhs_pkt *pkt, int *is_done); 66*4882a593Smuzhiyun }; 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun /* 69*4882a593Smuzhiyun * fifo 70*4882a593Smuzhiyun */ 71*4882a593Smuzhiyun int usbhs_fifo_probe(struct usbhs_priv *priv); 72*4882a593Smuzhiyun void usbhs_fifo_remove(struct usbhs_priv *priv); 73*4882a593Smuzhiyun void usbhs_fifo_init(struct usbhs_priv *priv); 74*4882a593Smuzhiyun void usbhs_fifo_quit(struct usbhs_priv *priv); 75*4882a593Smuzhiyun void usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe); 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun /* 78*4882a593Smuzhiyun * packet info 79*4882a593Smuzhiyun */ 80*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_fifo_pio_push_handler; 81*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler; 82*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler; 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_fifo_dma_push_handler; 85*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler; 86*4882a593Smuzhiyun 87*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler; 88*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler; 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler; 91*4882a593Smuzhiyun extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler; 92*4882a593Smuzhiyun 93*4882a593Smuzhiyun void usbhs_pkt_init(struct usbhs_pkt *pkt); 94*4882a593Smuzhiyun void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt, 95*4882a593Smuzhiyun void (*done)(struct usbhs_priv *priv, 96*4882a593Smuzhiyun struct usbhs_pkt *pkt), 97*4882a593Smuzhiyun void *buf, int len, int zero, int sequence); 98*4882a593Smuzhiyun struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt); 99*4882a593Smuzhiyun void usbhs_pkt_start(struct usbhs_pipe *pipe); 100*4882a593Smuzhiyun struct usbhs_pkt *__usbhsf_pkt_get(struct usbhs_pipe *pipe); 101*4882a593Smuzhiyun 102*4882a593Smuzhiyun #endif /* RENESAS_USB_FIFO_H */ 103